Cooking and exposure to oxygen can destroy 25% or more of the vitamin C in foods, so it's best to eat vitamin C-rich foods raw and immediately after cutting or peeling.

Based on very limited evidence, there's some indication that people with blood group A may have a higher risk of acquiring COVID-19 compared to non-A blood groups. Individuals with blood type O may have a lower risk of infection compared to non-O blood groups.

Moderate exercise of one hour per day for five days a week has been shown to improve the immune system, but intense exercise for two hours or more has been shown to increase the risk of illness.

Obesity, in extreme cases, very extreme cases, can have a massive effect on lifespan ... Extreme obesity, a BMI between 40 and 45, is associated with a 7-year decrease in life expectancy. Morbid obesity, this is a BMI between 55 and 60, is associated with a 14-year decrease in life expectancy.

In an 8-week week long, randomized, double-blind, placebo-controlled study involving 120 healthy adults between the age of 60 and 80-years-old, a 250mg daily dose of nicotinamide riboside and pterostilbene (a natural compound found in blueberries that activates sirtuin similar to resveratrol) increased participants' whole-blood NAD Levels by 40% compared to their baseline levels just after 4 weeks. Participants' whole-blood NAD levels increased by 90% when taking a double, dose which was 500mg.

In the United States, 60% of the population has inadequate intake of vitamin E, 45% has inadequate intake of magnesium, 34% has inadequate intake of vitamin A, 25% has inadequate intake of vitamin C, and 8% has an adequate zinc. Omega-3 fatty acid intake is also very low, and 70% of the US population has insufficient vitamin D levels.

A high omega-3 index has been associated with a 90% reduction in sudden cardiac death. In the United States, the omega-3 index is about 4% or lower. When I say a high omega-3 index, I mean 8% or more. A high omega-3 index has also been associated with a 5-year increase in life expectancy. So people, with an omega-3 index of 8% or more have a 5-year increase in life expectancy compared to people with an omega-3 index of 4% or lower.

Exercise, never stop. I mean, it's almost embarrassing to talk about how good it is for you ... 13 of the 26 most common types of cancer are lower in people who have higher levels of leisure time physical activity.

Meat is a very poor source of vitamin C. In fact, of more than 950 beef items listed in the USDA's food and nutrition database, only 21 items contain any vitamin C at all, and most contain tiny amounts that would be lost in cooking.

African Americans may be at a higher risk for severe COVID-19.

Approximately 70% of the US has vitamin D insufficiency while a further 28% has a low enough level to be called deficient. According to 'The Endocrine Society,' blood levels of 25-hydroxy vitamin D below 20 ng/mL is considered deficient and less than 30 ng/mL is considered insufficient.

There have been, in my 25-year career now at McMaster, probably about two dozen testosterone-boosting supplements that I've seen come and go ... I get DMs on Instagram: 'Which one should I take?' I'm like, save your money. Why bother? Just get to the gym and lift.

15, 20 years ago, if you said you can change the size of your hippocampus and your brain with exercise, I'd have been like, yeah, right. You can. You get improvements in mood. You get improvements in depressive symptoms, anxiety, and everything. You're almost of the magnitude similar to people taking pharmaceutical Interventions for those things.

Frequent sauna use is associated with a lower risk of death from cardiovascular disease, a lower risk of sudden cardiac death, a lower risk of coronary heart disease, a lower risk of stroke, a lower risk of dementia, of Alzheimer's disease ... The more frequent the sauna bathing, the more robust the health benefits are.

I'll just base a ballpark estimation on 100 grams of either broccoli or sprouts. And based on the amount of glucoraphanin that's in them and our knowledge of conversion and yield, you might get anywhere between 4 milligrams of glucoraphanin to 100-150 from 100 grams of broccoli, and that would yield anywhere from about half a milligram to something like 18 milligrams of sulforaphane.

The most extensively studied NAD booster is nicotinamide riboside. Several animal studies have shown that when nicotinamide riboside is orally administered at high doses, it can counteract an obesogenic diet by improving insulin sensitivity; it can improve endurance and strength. Another animal study showed, at high doses, nicotinamide riboside could reverse mitochondrial damage, it could increase mitochondrial biogenesis, and reverse muscular atrophy in animals that had a severe muscle-wasting disease.

It really does not hurt to take in more protein. I mean, there's a lot of myths about kidney damage in healthy individuals—no good evidence that there's any negative effects on renal function, certainly on bone density. These are all unsupported from my reading of the literature.

Certainly, to take every set to failure... not only does it not show any benefit for hypertrophy, it actually showed a small detriment for strength. So, with strength, stopping a couple reps short of failure seems to have better effects on maximizing strength than training to failure.

As general guideline, to optimize hypertrophy, you want to be somewhere between 10 to 20 sets per muscle per week.

The carnivore lifestyle is bad advice. Human beings didn't evolve as carnivores. We're omnivores. That means we need a variety of vegetables and meats. This is a product of evolution ... It's clear we didn't evolve to be carnivores.